M_{12}

A_{6}.2_{2} ≤ A_{6}.2^{2} 132 1a + 11a + 54a + 66a 4

Character Numbers: [ 1, 2, 7, 11 ]

A_{6}.2_{2} ≤ A_{6}.2^{2} 132 1a + 11b + 54a + 66a 4

Character Numbers: [ 1, 3, 7, 11 ]

S_{1} S_{2} S_{3} S_{4}
χ_{1} 1 1 40 90
χ_{2} 1 1 16 −18
χ_{3} 1 1 −4  2
χ_{4} 1 −1 0  0

Ramanujan Graphs: [ 2, 3, 4 ], [ 2, 4 ], [ 3, 4 ], [ 4 ]